{"pageNumber":"1817","pageRowStart":"45400","pageSize":"25","recordCount":46619,"records":[{"id":52651,"text":"ofr6810 - 1968 - Data for springs in the southern coast, Transverse, and Peninsular Ranges, of California","interactions":[],"lastModifiedDate":"2012-02-02T00:11:25","indexId":"ofr6810","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-10","title":"Data for springs in the southern coast, Transverse, and Peninsular Ranges, of California","language":"ENGLISH","doi":"10.3133/ofr6810","usgsCitation":"Berkstresser, C., 1968, Data for springs in the southern coast, Transverse, and Peninsular Ranges, of California: U.S. Geological Survey Open-File Report 68-10, 104 p.; 1 fig., https://doi.org/10.3133/ofr6810.","productDescription":"104 p.; 1 fig.","costCenters":[],"links":[{"id":178651,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0010/report-thumb.jpg"},{"id":87004,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0010/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a50e4b07f02db6296ce","contributors":{"authors":[{"text":"Berkstresser, C.F. Jr.","contributorId":99629,"corporation":false,"usgs":true,"family":"Berkstresser","given":"C.F.","suffix":"Jr.","affiliations":[],"preferred":false,"id":245704,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":11856,"text":"ofr69214 - 1968 - Analysis of multisensor data, autometric operation","interactions":[],"lastModifiedDate":"2012-02-02T00:06:42","indexId":"ofr69214","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"69-214","title":"Analysis of multisensor data, autometric operation","language":"ENGLISH","publisher":"[s.n.],","doi":"10.3133/ofr69214","usgsCitation":"Raytheon Co., 1968, Analysis of multisensor data, autometric operation: U.S. Geological Survey Open-File Report 69-214, 35 p. ill. ;28 cm., https://doi.org/10.3133/ofr69214.","productDescription":"35 p. ill. ;28 cm.","costCenters":[],"links":[{"id":95052,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0214/report.pdf","size":"5255","linkFileType":{"id":1,"text":"pdf"}},{"id":145291,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0214/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acfe4b07f02db680290","contributors":{"authors":[{"text":"Raytheon Co.","contributorId":128286,"corporation":true,"usgs":false,"organization":"Raytheon Co.","id":528906,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":3975,"text":"cir606 - 1968 - Anomalous concentrations of gold, silver, and other metals in the Mill Canyon area, Cortez quadrangle, Eureka and Lander Counties, Nevada","interactions":[],"lastModifiedDate":"2012-02-02T00:05:28","indexId":"cir606","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"606","title":"Anomalous concentrations of gold, silver, and other metals in the Mill Canyon area, Cortez quadrangle, Eureka and Lander Counties, Nevada","docAbstract":"The Mill Canyon area is in the eastern part of the Cortez window of the Roberts Mountains thrust belt in the Cortez quadrangle, north-central Nevada. Gold and silver ores have been mined from fissure veins in Jurassic quartz monzonite and in the bordering Wenban Limestone of Devonian age. Geochemical data show anomalies of gold, silver, lead, zinc, copper, arsenic, antimony, mercury, and tellurium. Geologic and geochemical studies indicate that a formation favorable for gold deposition, the Roberts Mountains Limestone of Silurian age, may be found at depth near the mouth of Mill Canyon.","language":"ENGLISH","publisher":"[U.S. Dept. of the Interior, Geological Survey],","doi":"10.3133/cir606","usgsCitation":"Elliott, J., and Wells, J.D., 1968, Anomalous concentrations of gold, silver, and other metals in the Mill Canyon area, Cortez quadrangle, Eureka and Lander Counties, Nevada: U.S. Geological Survey Circular 606, iii, 20 p. :illus., maps. ;26 cm., https://doi.org/10.3133/cir606.","productDescription":"iii, 20 p. :illus., maps. ;26 cm.","costCenters":[],"links":[{"id":138632,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0606/report-thumb.jpg"},{"id":31060,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0606/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b6c3","contributors":{"authors":[{"text":"Elliott, James E.","contributorId":15595,"corporation":false,"usgs":true,"family":"Elliott","given":"James E.","affiliations":[],"preferred":false,"id":147935,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wells, John David","contributorId":96244,"corporation":false,"usgs":true,"family":"Wells","given":"John","email":"","middleInitial":"David","affiliations":[],"preferred":false,"id":147936,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":3973,"text":"cir460C - 1968 - The Vigil Network: Preservation and access of data","interactions":[],"lastModifiedDate":"2012-02-02T00:05:28","indexId":"cir460C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"460","chapter":"C","title":"The Vigil Network: Preservation and access of data","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/cir460C","usgsCitation":"Emmett, W.W., and Hadley, R.F., 1968, The Vigil Network: Preservation and access of data: U.S. Geological Survey Circular 460, iii, 21 p. :maps ;26 cm., https://doi.org/10.3133/cir460C.","productDescription":"iii, 21 p. :maps ;26 cm.","costCenters":[],"links":[{"id":120761,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0460c/report-thumb.jpg"},{"id":31058,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0460c/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66d5c6","contributors":{"authors":[{"text":"Emmett, William W.","contributorId":68715,"corporation":false,"usgs":true,"family":"Emmett","given":"William","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":147932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hadley, R. F.","contributorId":27028,"corporation":false,"usgs":true,"family":"Hadley","given":"R.","middleInitial":"F.","affiliations":[],"preferred":false,"id":147931,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":3593,"text":"cir552 - 1968 - Reconnaissance investigations of the discharge and water quality of the Amazon River","interactions":[],"lastModifiedDate":"2012-02-02T00:05:26","indexId":"cir552","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"552","title":"Reconnaissance investigations of the discharge and water quality of the Amazon River","docAbstract":"Selected published estimates of the discharge of Amazon River in the vicinity of Obidos and the mouth are presented to show the great variance of available information. The most reasonable estimates prepared by those who measured some parameters of the flow were studied by Maurice Parde, who concluded that the mean annual discharge is 90,000 to 100,000 cms (cubic meters per second) or 3,200,000 to 3,500,000 cfs (cubic feet per second). A few published estimates of discharge at mouth of 110,000 cms (3,900,000 cfs) based on rainfall-runoff relationships developed for other humid regions of the world are available. \r\n\r\nThree measurements of discharge made at the Obidos narrows in 1963-64 by a joint Brazil-United States expedition at high, low, and medium river stage are referred to the datum used at the Obidos gage during the period of operation, 1928-46, and a relationship between stage and discharge prepared on the basis of the measurements and supplementary data and computations. Recovery of the original Obidos gage datum is verified by referring the 1963-64 concurrent river stages at Manaus, Obidos, and Taperinha to gage relation curves developed for Manaus-Obidos and Obidos-Taperinha for periods of concurrent operation, 1928-46 and 1931-46, respectively. The average discharge, based on the stage-discharge relation and record of river stage for the period 1928-46, is computed to be 5,500,000 cfs (157,000 cms) for the Obidos site. \r\n\r\nThe greatest known flood at Obidos, that of June 1953, is computed to have been a flow of 12,500,000 cfs (350,000 cms) at stage of 7.6 meters (24.9 feet) in the main channel and an indeterminate amount of overflow which, under the best assumed overflow conditions, may have amounted to about 10 percent of the main channel flow. Overflow discharge at stage equivalent to mean annual discharge is judged to be an insignificant percentage of flow down the main channel. \r\n\r\nMiscellaneous data collected during the flow measurements show that the tidal effect reaches upstream to Obidos at extremely low flows, the distribution of velocities in stream verticals is affected by large-scale turbulence, the standard procedure of basing mean velocity in vertical on the average of point velocities measured at 20 and 80 percent of the total depth is valid, and there is a low Manning roughness coefficient of 0.019 (English units). Samples of suspended sediment taken with a point sampler at various depths in selected verticals show, for the Obidos site, a variation in concentration from 300 to 340 mg/l (milligram per liter) near the streambed to 50 to 70 mg/l in the upper part of the verticals. \r\n\r\nMedian diameter of bed material at Obidos averaged about 0.20 mm (millimeter) in a range of 0.15 to 0.25 ram. Analyses of water samples collected at Obidos in July and November 1963 and August 1964 are presented. The reconnaissance measurements of 1963-64 provide a well-supported value of mean annual water discharge of Amazon River at Obidos and the mouth. Many more measurements of flow and water-quality characteristics are needed to obtain more exact values of discharge, suspended sediment, and salt load.","language":"ENGLISH","publisher":"[U.S. Geological Survey ],","doi":"10.3133/cir552","usgsCitation":"Oltman, R.E., 1968, Reconnaissance investigations of the discharge and water quality of the Amazon River: U.S. Geological Survey Circular 552, iii, 16 p. :illus., maps. ;26 cm., https://doi.org/10.3133/cir552.","productDescription":"iii, 16 p. :illus., maps. ;26 cm.","costCenters":[],"links":[{"id":124488,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0552/report-thumb.jpg"},{"id":30626,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0552/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6ce4b07f02db63e7fd","contributors":{"authors":[{"text":"Oltman, Roy Edwin","contributorId":101635,"corporation":false,"usgs":true,"family":"Oltman","given":"Roy","email":"","middleInitial":"Edwin","affiliations":[],"preferred":false,"id":147224,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":16445,"text":"ofr68315 - 1968 - Surface seismic measurements of the Project GASBUGGY explosion at intermediate distance ranges","interactions":[],"lastModifiedDate":"2012-08-01T01:01:41","indexId":"ofr68315","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-315","title":"Surface seismic measurements of the Project GASBUGGY explosion at intermediate distance ranges","docAbstract":"Project GASBUGGY was an experiment performed by the Atomic Energy Commission, the El Paso Natural Gas Company, and the Bureau of Mines, U.S. Department of the Interior, to determine the effectiveness of a method for increasing the recovery of natural gas by large-scale fracturing of a gas-bearing formation with an underground nuclear explosion. The Project GASBUGGY nuclear explosive of 26 kilotons design yield was detonated on Sunday, December 10, 1967, at 1230:00 Mountain Standard Time. Lawrence Radiation Laboratory reported that the explosive was emplaced at 4240 ft below the ground surface, 1770 ft from the west line and 1218 ft from the south line in Section 36 of Township 29 North, Range 4 West, in Rio Arriba County, New Mexico, about 55 air miles east of the city of Farmington, New Mexico. The geodetic coordinates are: Latitude 36?40'40.4\" North, and Longitude 107?12'30.3\" West. The elevation of surface ground zero was 7204 ft above Mean Sea Level. The detonation occurred in the Lewis shale about 40 ft below its contact with the gas-bearing Pictured Cliffs sandstone. Early indications are that the explosive performed satisfactorily. This document is submitted as a preliminary data report. Additional analyses of the data will be prepared at a later time.","language":"ENGLISH","publisher":"National Center for Earthquake Research","publisherLocation":"Menlo Park, CA","doi":"10.3133/ofr68315","usgsCitation":"Warren, D.H., and Jackson, W.H., 1968, Surface seismic measurements of the Project GASBUGGY explosion at intermediate distance ranges: U.S. Geological Survey Open-File Report 68-315, 45 p. ill., maps ;27 cm., https://doi.org/10.3133/ofr68315.","productDescription":"45 p. ill., maps ;27 cm.","numberOfPages":"51","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":148567,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_68_315.gif"},{"id":259292,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0315/of68-315.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":259291,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1968/0315/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"New Mexico","county":"Rio Arriba County","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db69824f","contributors":{"authors":[{"text":"Warren, David H.","contributorId":106128,"corporation":false,"usgs":true,"family":"Warren","given":"David","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":172863,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jackson, W. H.","contributorId":21153,"corporation":false,"usgs":true,"family":"Jackson","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":172862,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":2053,"text":"wsp1862 - 1968 - Geology and ground-water resources of the Deer Lodge Valley, Montana","interactions":[],"lastModifiedDate":"2012-02-02T00:05:22","indexId":"wsp1862","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1862","title":"Geology and ground-water resources of the Deer Lodge Valley, Montana","docAbstract":"The Deer Lodge Valley is a basin trending north-south within Powell, Deer Lodge, and Silver Bow Counties in west-central Montana, near the center of the Northern Rocky Mountains physiographic province. It trends northward between a group of relatively low, rounded mountains to the east and the higher, more rugged Flint Creek Range to the west. The Clark Fork and its tributaries drain the valley in a northerly direction. The climate is semiarid and is characterized by long cold winters and short cool summers. Agriculture and ore refining are the principal industries. Both are dependent on large amounts of water. The principal topographic features are a broad lowland, the Clark Fork flood plain, bordered by low fringing terraces that are in turn bordered by broad, high terraces, which slope gently upward to the mountains. The high terraces have been mostly obscured in the south end of the valley by erosion and by recent deposition of great coalescent fans radiating outward frown the mouths of various tributary canyons. \r\n\r\nThe mountains east of the Deer Lodge Valley are formed mostly of Cretaceous sedimentary and volcanic rocks and a great core of Upper Cretaceous to lower Tertiary granitic rocks; those west of the valley are formed of Precambrian to Cretaceous sedimentary rocks and a core of lower Tertiary granitic rocks. Field relationships, gravimetric data, and seismic data indicate that the valley is a deep graben, which formed in early Tertiary time after emplacement of the Boulder and Philipsburg batholiths. During the Tertiary Period the valley was partly filled to a maximum depth of more than 5,500 feet with erosional detritus that came from the surrounding mountains and was interbedded with minor amounts of volcanic ejecta. This material accumulated in a great variety of local environments. Consequently the resultant deposits are of extremely variable lithology in lateral and vertical sequence. The deposits grade from unconsolidated to well-cemented and from clay to boulder-sized aggregates. Throughout most of the area the strata dip gently towards the valley axis, but along the western margins of the valley they dip steeply into the mountains. \r\n\r\nIn late Pliocene or early Pleistocene the Tertiary strata were eroded to a nearly regular valley divide surface. In the western part of the valley the erosion surface was thinly mantled by glacial debris from the Flint Creek Range. Still later, probably during several interglacial intervals, the Clark Fork and its tributaries entrenched themselves in the Tertiary strata to an average depth of about 150 feet. The resultant erosional features were further modified by Wisconsin to Recent glaciofluvial deposition.\r\n\r\nThree east-west cross .sections and a corrected gravity map were drawn for the \r\nvalley. They indicate a maximum depth of fill of more than 5,500 feet in the \r\nsouthern part. Depths decrease to the north to approximately 2,300 feet near \r\nthe town of Deer Lodge. \r\n\r\nThe principal source of ground water in the Deer Lodge Valley is the upper few hundred feet of unconsolidated valley fill. Most of the wells tapping these deposits range in depth from a few feet to 250 feet. Water levels range from somewhat above land surface (in flowing wells) to about 150 feet below. Yields of the wells range from a few gallons per minute to 1,000 gallons per minute. Generally, wells having the highest yields are on the flood plain of the Clark Fork or the coalescent fans of Warm Springs and Mill Creeks. \r\n\r\nDischarge of ground water by seepage into streams, by evapotranspiration, and by pumping from wells causes a gradual lowering of the water table. Each spring and early summer, seepage of water from irrigation and streams and infiltration of water from snowmelt and precipitation replenish the ground-water reservoir. Seasonal fluctuation of the water table generally is less than 10 feet. The small yearly water table fluctuation indicates that recharge about balances discharge from th","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/wsp1862","usgsCitation":"Konizeski, R.L., McMurtrey, R.G., and Brietkrietz, A., 1968, Geology and ground-water resources of the Deer Lodge Valley, Montana: U.S. Geological Survey Water Supply Paper 1862, iv, 55 p. :illus., maps (2 fold. col. in pocket) ;24 cm., https://doi.org/10.3133/wsp1862.","productDescription":"iv, 55 p. :illus., maps (2 fold. col. in pocket) ;24 cm.","costCenters":[],"links":[{"id":138459,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/1862/report-thumb.jpg"},{"id":27580,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1862/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":27581,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1862/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":27582,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/1862/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adae4b07f02db685593","contributors":{"authors":[{"text":"Konizeski, Richard L.","contributorId":80248,"corporation":false,"usgs":true,"family":"Konizeski","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":144602,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McMurtrey, R. G.","contributorId":36913,"corporation":false,"usgs":true,"family":"McMurtrey","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":144601,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brietkrietz, Alex","contributorId":34111,"corporation":false,"usgs":true,"family":"Brietkrietz","given":"Alex","email":"","affiliations":[],"preferred":false,"id":144600,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":53419,"text":"ofr689 - 1968 - Data for springs in the northern coast ranges and Klamath Mountains of California","interactions":[],"lastModifiedDate":"2012-02-02T00:11:39","indexId":"ofr689","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-9","title":"Data for springs in the northern coast ranges and Klamath Mountains of California","language":"ENGLISH","doi":"10.3133/ofr689","usgsCitation":"Berkstresser, C.F., 1968, Data for springs in the northern coast ranges and Klamath Mountains of California: U.S. Geological Survey Open-File Report 68-9, iv, 49 p. : map ; 27 cm., https://doi.org/10.3133/ofr689.","productDescription":"iv, 49 p. : map ; 27 cm.","costCenters":[],"links":[{"id":177471,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0009/report-thumb.jpg"},{"id":87387,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0009/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c904","contributors":{"authors":[{"text":"Berkstresser, Charles F. Jr.","contributorId":43390,"corporation":false,"usgs":true,"family":"Berkstresser","given":"Charles","suffix":"Jr.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":247556,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":58106,"text":"wdrCO672 - 1968 - Water Resources Data for Colorado, 1967; Part 2: Water quality records","interactions":[],"lastModifiedDate":"2012-02-02T00:12:03","indexId":"wdrCO672","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":340,"text":"Water Data Report","code":"WDR","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"CO-67-2","title":"Water Resources Data for Colorado, 1967; Part 2: Water quality records","language":"ENGLISH","doi":"10.3133/wdrCO672","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1968, Water Resources Data for Colorado, 1967; Part 2: Water quality records: U.S. Geological Survey Water Data Report CO-67-2, 107 p., https://doi.org/10.3133/wdrCO672.","productDescription":"107 p.","costCenters":[],"links":[{"id":181247,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wdr/1967/co-67-2/report-thumb.jpg"},{"id":88330,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wdr/1967/co-67-2/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0de4b07f02db5fd0fb","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":533214,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":13754,"text":"ofr68304 - 1968 - Map showing location of subbottom acoustic profiles in San Francisco Bay from Bay Farm Island westward toward Hunter's Point filed with the National Oceanographic Data Center","interactions":[],"lastModifiedDate":"2021-03-17T00:41:01.922398","indexId":"ofr68304","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-304","title":"Map showing location of subbottom acoustic profiles in San Francisco Bay from Bay Farm Island westward toward Hunter's Point filed with the National Oceanographic Data Center","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr68304","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1968, Map showing location of subbottom acoustic profiles in San Francisco Bay from Bay Farm Island westward toward Hunter's Point filed with the National Oceanographic Data Center: U.S. Geological Survey Open-File Report 68-304, 11 p., https://doi.org/10.3133/ofr68304.","productDescription":"11 p.","costCenters":[],"links":[{"id":384434,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0304/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":145903,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0304/report-thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.43713378906249,\n              37.42034463389752\n            ],\n            [\n              -121.90704345703124,\n              37.42034463389752\n            ],\n            [\n              -121.90704345703124,\n              37.78156937014928\n            ],\n            [\n              -122.43713378906249,\n              37.78156937014928\n            ],\n            [\n              -122.43713378906249,\n              37.42034463389752\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a48ea","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":528951,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":4713,"text":"twri04A1 - 1968 - Some statistical tools in hydrology","interactions":[],"lastModifiedDate":"2012-02-02T00:05:32","indexId":"twri04A1","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"04-A1","title":"Some statistical tools in hydrology","docAbstract":"This chapter of 'Techniques of Water-Resources Investigations' provides background material needed for understanding the statistical procedures most useful in hydrology; it furnishes detailed procedures, with examples, of regression analyses; it describes analysis of variance and covariance and discusses the characteristics of hydrologic data.","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/twri04A1","issn":"0565-596X","usgsCitation":"Riggs, H.C., 1968, Some statistical tools in hydrology: U.S. Geological Survey Techniques of Water-Resources Investigations 04-A1, vi, 39 p. :ill. ;26 cm. Reprinted in 1977., https://doi.org/10.3133/twri04A1.","productDescription":"vi, 39 p. :ill. ;26 cm. Reprinted in 1977.","costCenters":[],"links":[{"id":139207,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":342,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/twri/twri4a1/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e478fe4b07f02db48a361","contributors":{"authors":[{"text":"Riggs, H. C.","contributorId":17210,"corporation":false,"usgs":true,"family":"Riggs","given":"H.","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":149662,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":3632,"text":"cir551 - 1968 - Water temperatures in the lower Columbia River","interactions":[{"subject":{"id":55914,"text":"ofr69173 - 1969 - Water temperatures in the Columbia River basin, water year 1968","indexId":"ofr69173","publicationYear":"1969","noYear":false,"title":"Water temperatures in the Columbia River basin, water year 1968"},"predicate":"SUPERSEDED_BY","object":{"id":3632,"text":"cir551 - 1968 - Water temperatures in the lower Columbia River","indexId":"cir551","publicationYear":"1968","noYear":false,"title":"Water temperatures in the lower Columbia River"},"id":1}],"lastModifiedDate":"2017-02-03T13:52:20","indexId":"cir551","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"551","title":"Water temperatures in the lower Columbia River","docAbstract":"Daily observations of water temperature for 20 sites in the lower Columbia River are presented in tabular form and in profile form by months for the period August 1941 to July 1942. The profiles show minimum, mean (average), and maximum water temperatures for those months from river mile 142 to river mile 6.7. The data indicate that water temperature in the lower river trends upward from October to March and has no marked trend, or trends downward, during April to September. \r\n\r\nAnalysis of the water-temperature records at Bonneville Dam (river mile 146.1) for the 1938-66 period of record show-s that the months from August 1941 to July 1942 are fairly representative of average conditions except for August and January, which are about 3 ?F above and 4 ?F below average, respectively. Analysis of the Bonneville Dam records also indicates that in the mid-1950's a man-caused change in water-temperature regimen occurred that resulted in higher temperatures at Bonneville Dam for 10 months of the year but no change in March and April. The changes for the other months ranged from +0.5 ? to +2.0?F. This means that average temperatures for the lower river are now somewhat warmer for most months than temperatures shown in the profiles.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior,","doi":"10.3133/cir551","usgsCitation":"Moore, A.M., 1968, Water temperatures in the lower Columbia River: U.S. Geological Survey Circular 551, iv, 45 p. :ill., maps. ;26 cm., https://doi.org/10.3133/cir551.","productDescription":"iv, 45 p. :ill., maps. ;26 cm.","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"links":[{"id":117476,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0551/report-thumb.jpg"},{"id":30675,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0551/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f4e4b07f02db5f00c6","contributors":{"authors":[{"text":"Moore, Albert M.","contributorId":23529,"corporation":false,"usgs":true,"family":"Moore","given":"Albert","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":147293,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":2823,"text":"wsp1672 - 1968 - Magnitude and frequency of floods in the United States; part 1-B. North Atlantic slope basins, New York to York River","interactions":[],"lastModifiedDate":"2022-01-07T20:34:53.772695","indexId":"wsp1672","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1672","title":"Magnitude and frequency of floods in the United States; part 1-B. North Atlantic slope basins, New York to York River","docAbstract":"<p>Flood magnitude-frequency relation applicable to streams in the North Atlantic slope basins, New York to York River, Va., are presented in this report. &nbsp;The relations are based on flood data collected at 487 gaging stations having&nbsp;5 or more years of record not materially affected by regulation. For sites on most streams, the magnitude of a flood of any given frequency between 1.1 and 50&nbsp;years can be determined from two curves - one expressing the relation between&nbsp;the mean annual flood and size of draining basin and the other expressing the&nbsp;ratio to the mean annual flood of floods of other recurrence intervals. For New&nbsp;Jersey streams, an adjustment to the mean annual flood is based on the percentage&nbsp;of surface area covered by lakes and swamps in the basin.</p>","language":"English","publisher":"U.S. Government Printing Office","doi":"10.3133/wsp1672","usgsCitation":"Tice, R.H., 1968, Magnitude and frequency of floods in the United States; part 1-B. North Atlantic slope basins, New York to York River: U.S. Geological Survey Water Supply Paper 1672, Report: xvii, 585 p.; Plate: 29.23 x 37.19 inches, https://doi.org/10.3133/wsp1672.","productDescription":"Report: xvii, 585 p.; Plate: 29.23 x 37.19 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":138743,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/1672/report-thumb.jpg"},{"id":29382,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/1672/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":29381,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1672/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":110006,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_24881.htm","linkFileType":{"id":5,"text":"html"},"description":"24881"}],"country":"United States","state":"Delaware, Maryland, New Jersey, New York, Pennsylvania, Virginia, West Virginia","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -79.4970703125,\n              36.84446074079564\n            ],\n            [\n              -79.4970703125,\n              43.75522505306928\n            ],\n            [\n              -73.388671875,\n              43.75522505306928\n            ],\n            [\n              -73.388671875,\n              36.84446074079564\n            ],\n            [\n              -79.4970703125,\n              36.84446074079564\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db6495ad","contributors":{"authors":[{"text":"Tice, Richard H.","contributorId":13601,"corporation":false,"usgs":true,"family":"Tice","given":"Richard","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":145857,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":4418,"text":"cir566 - 1968 - Tertiary gold-bearing channel gravel in northern Nevada County, California","interactions":[],"lastModifiedDate":"2012-02-02T00:05:28","indexId":"cir566","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"566","title":"Tertiary gold-bearing channel gravel in northern Nevada County, California","docAbstract":"The remains of a huge Tertiary gravel-filled channel lie in the area between the South and Middle Yuba Rivers in northern Nevada County, Calif. The deposits in this channel were the site of some of the most productive hydraulic gold mines in California between the 1850's and 1884. \r\n\r\nThe gravel occupies a major channel and parts of several tributaries that in Tertiary time cut into a surface of Paleozoic and Mesozoic igneous and metamorphic rocks. The gravel is partly covered by the remains of an extensive sheet of volcanic rocks, but it crops out along the broad crest of the ridge between the canyons of the South and Middle Yuba Rivers. The lower parts of the gravel deposits generally carry the highest values of placer gold. Traditionally, the richest deposits of all are found in the so-called blue gravel, which, when present, lies just above the bedrock and consists of a very coarse, poorly sorted mixture of cobbles, pebbles, sand, and clay. It is unoxidized, and, at least locally, contains appreciable quantities of secondary sulfide minerals, chiefly pyrite. \r\n\r\nInformation in drill logs from private sources indicates that a 2-mile stretch of the channel near North Columbia contains over half a million ounces of gold dispersed through about 22 million cubic yards of gravel at a grade .averaging about 81 cents per cubic yard. The deposit is buried at depths ranging from 100 to 400 feet. \r\n\r\nSeveral geophysical methods have been tested for their feasibility in determining the configuration of the buried bedrock surface, in delineating channel gravel buried under volcanic rocks, and in identifying concentrations of heavy minerals within the gravel. Although the data have not yet been completely processed, preliminary conclusions indicate that some methods may be quite useful. A combination of seismic-refraction and gravity methods was used to determine the depth and configuration of the bottom of the channel to an accuracy within 10 percent as checked by the drill holes. Seismic-refraction methods have identified depressions which are in the bedrock surface, below volcanic rocks, and which may be occupied by gravels. Seismic methods, however, cannot actually recognize the presence of low-velocity gravels beneath the higher velocity volcanic rocks. Electromagnetic methods, supplemented in part by induced-polarization methods, show promise of being able to recognize and trace blue gravel buried less than 200 feet deep. A broad vague magnetic anomaly across the channel suggests that more precise magnetic studies might delineate concentrations of magnetic material. The usefulness of resistivity methods appears from this study to be quite restricted because of irregular topography and the variable conductivity of layers within the gravel.","language":"ENGLISH","doi":"10.3133/cir566","usgsCitation":"Peterson, D.W., Yeend, W., Oliver, H.W., and Mattick, R., 1968, Tertiary gold-bearing channel gravel in northern Nevada County, California: U.S. Geological Survey Circular 566, iii, 22 p. :ill., maps. ;27 cm., https://doi.org/10.3133/cir566.","productDescription":"iii, 22 p. :ill., maps. ;27 cm.","costCenters":[],"links":[{"id":124415,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0566/report-thumb.jpg"},{"id":31523,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0566/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db684fd5","contributors":{"authors":[{"text":"Peterson, D. W.","contributorId":84326,"corporation":false,"usgs":true,"family":"Peterson","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":149089,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yeend, W. E.","contributorId":104879,"corporation":false,"usgs":true,"family":"Yeend","given":"W. E.","affiliations":[],"preferred":false,"id":149092,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Oliver, H. W.","contributorId":85570,"corporation":false,"usgs":true,"family":"Oliver","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":149091,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mattick, R.E.","contributorId":85162,"corporation":false,"usgs":true,"family":"Mattick","given":"R.E.","affiliations":[],"preferred":false,"id":149090,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":56297,"text":"wdrNV671 - 1968 - Water resources data for Nevada, 1967","interactions":[],"lastModifiedDate":"2012-02-02T00:12:01","indexId":"wdrNV671","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":340,"text":"Water Data Report","code":"WDR","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"NV-67-1","title":"Water resources data for Nevada, 1967","language":"ENGLISH","doi":"10.3133/wdrNV671","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1968, Water resources data for Nevada, 1967: U.S. Geological Survey Water Data Report NV-67-1, NA, https://doi.org/10.3133/wdrNV671.","productDescription":"NA","costCenters":[],"links":[{"id":181325,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f0e4b07f02db5ee0c6","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":532488,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":16698,"text":"ofr68340 - 1968 - Preliminary interpretation of aeromagnetic and gravity data near the Large Aperture Seismic Array, Montana","interactions":[],"lastModifiedDate":"2025-07-28T16:26:43.575251","indexId":"ofr68340","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-340","title":"Preliminary interpretation of aeromagnetic and gravity data near the Large Aperture Seismic Array, Montana","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr68340","usgsCitation":"Zietz, I., Hearn, B., and Plouff, D., 1968, Preliminary interpretation of aeromagnetic and gravity data near the Large Aperture Seismic Array, Montana: U.S. Geological Survey Open-File Report 68-340, Report: 23 p.; 1 Plate: 39.00 x 32.79 inches, https://doi.org/10.3133/ofr68340.","productDescription":"Report: 23 p.; 1 Plate: 39.00 x 32.79 inches","costCenters":[],"links":[{"id":493023,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8310.htm","linkFileType":{"id":5,"text":"html"}},{"id":45769,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0340/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":45768,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1968/0340/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":148794,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0340/report-thumb.jpg"}],"country":"United States","state":"Montana","otherGeospatial":"Large Aperture Seismic Array","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -110.212,\n              48.179\n            ],\n            [\n              -110.212,\n              44.725\n            ],\n            [\n              -103.7780,\n              44.725\n            ],\n            [\n              -103.7780,\n              48.179\n            ],\n            [\n              -110.212,\n              48.179\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db672b91","contributors":{"authors":[{"text":"Zietz, Isidore","contributorId":76708,"corporation":false,"usgs":true,"family":"Zietz","given":"Isidore","affiliations":[],"preferred":false,"id":173312,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hearn, B.C.","contributorId":7700,"corporation":false,"usgs":true,"family":"Hearn","given":"B.C.","affiliations":[],"preferred":false,"id":173311,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Plouff, Donald","contributorId":94657,"corporation":false,"usgs":true,"family":"Plouff","given":"Donald","email":"","affiliations":[],"preferred":false,"id":173313,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":15424,"text":"ofr68212 - 1968 - Evaluation of infrared imagery applications to studies of surficial geology - Yellowstone Park","interactions":[],"lastModifiedDate":"2025-06-24T18:43:35.528858","indexId":"ofr68212","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-212","title":"Evaluation of infrared imagery applications to studies of surficial geology - Yellowstone Park","docAbstract":"<p>Infrared imagery, in the 3-5 micron band, was obtained during afternoon and post-sunset hours of August 1966 by the H.R.B. Singer Corporation on contract to the U. S. Geological Survey. Analysis of these data reveals that known thermal features such as hot and cold springs, glaciers and snow fields and lakes are readily identified on day and night images but that areas of known \"hydrothermal\" alteration are not detectable by the system employed.</p><p>Surficial deposits such as talus and frost rubble are generally light toned but commonly darker than outcrops warmed by solar radiation. Sharp constrasts were noted between forest and grassland areas. Attempts were made to use the imagery in mapping surficial deposits in several areas but results were variable due to the overriding effects of outcrop-forest-grassland contrasts. Recommendations for future missions are presented.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr68212","usgsCitation":"Pierce, K.L., 1968, Evaluation of infrared imagery applications to studies of surficial geology - Yellowstone Park: U.S. Geological Survey Open-File Report 68-212, 19 p., https://doi.org/10.3133/ofr68212.","productDescription":"19 p.","costCenters":[],"links":[{"id":491235,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0212/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":148630,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0212/report-thumb.jpg"}],"country":"United States","otherGeospatial":"Yellowstone 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,{"id":4704,"text":"twri07C3_1968 - 1968 - Preparation of input data for automatic computation of stage-discharge relations at culverts","interactions":[],"lastModifiedDate":"2017-05-18T12:04:59","indexId":"twri07C3_1968","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"07-C3","title":"Preparation of input data for automatic computation of stage-discharge relations at culverts","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/twri07C3_1968","issn":"0565-596X","usgsCitation":"Matthai, H.F., Stull, H.E., and Davidian, J., 1968, Preparation of input data for automatic computation of stage-discharge relations at culverts: U.S. Geological Survey Techniques of Water-Resources Investigations 07-C3, vi, 25 p., https://doi.org/10.3133/twri07C3_1968.","productDescription":"vi, 25 p.","costCenters":[],"links":[{"id":139142,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/twri/07c03-1968/report-thumb.jpg"},{"id":94736,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/twri/07c03-1968/report.pdf","size":"2328","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aaae4b07f02db6691d9","contributors":{"authors":[{"text":"Matthai, Howard Frederick","contributorId":100824,"corporation":false,"usgs":true,"family":"Matthai","given":"Howard","email":"","middleInitial":"Frederick","affiliations":[],"preferred":false,"id":149650,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stull, Harold E.","contributorId":60197,"corporation":false,"usgs":true,"family":"Stull","given":"Harold","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":149648,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davidian, Jacob","contributorId":80245,"corporation":false,"usgs":true,"family":"Davidian","given":"Jacob","email":"","affiliations":[],"preferred":false,"id":149649,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":4710,"text":"twri04A2 - 1968 - Frequency curves","interactions":[],"lastModifiedDate":"2012-02-02T00:05:31","indexId":"twri04A2","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"04-A2","title":"Frequency curves","docAbstract":"This manual describes graphical and mathematical procedures for preparing frequency curves from samples of hydrologic data. It also discusses the theory of frequency curves, compares advantages of graphical and mathematical fitting, suggests methods of describing graphically defined frequency curves analytically, and emphasizes the correct interpretations of a frequency curve.","language":"ENGLISH","publisher":"U.S. Govt. Print. Off.,","doi":"10.3133/twri04A2","issn":"0565-596X","usgsCitation":"Riggs, H.C., 1968, Frequency curves: U.S. Geological Survey Techniques of Water-Resources Investigations 04-A2, v, 15 p. :ill. ;26 cm. Reprinted in 1978, 1989., https://doi.org/10.3133/twri04A2.","productDescription":"v, 15 p. :ill. ;26 cm. Reprinted in 1978, 1989.","costCenters":[],"links":[{"id":299,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/twri/twri4a2/","linkFileType":{"id":5,"text":"html"}},{"id":139156,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699dda","contributors":{"authors":[{"text":"Riggs, H. C.","contributorId":17210,"corporation":false,"usgs":true,"family":"Riggs","given":"H.","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":149659,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":3328,"text":"cir561 - 1968 - An atomic-absorption method for the determination of gold in large samples of geologic materials","interactions":[],"lastModifiedDate":"2012-02-02T00:05:40","indexId":"cir561","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"561","title":"An atomic-absorption method for the determination of gold in large samples of geologic materials","docAbstract":"A laboratory method for the determination of gold in large (100-gram) samples has been developed for use in the study of the gold content of placer deposits and of trace amounts of gold in other geologic materials. In this method the sample is digested with bromine and ethyl ether, the gold is extracted into methyl isobutyl ketone, and the determination is made by atomicabsorption spectrophotometry. The lower limit of detection is 0.005 part per million in the sample. The few data obtained so far by this method agree favorably with those obtained by assay and by other atomic-absorption methods. About 25 determinations can be made per man-day.","language":"ENGLISH","publisher":"[U.S. Govt. Print. Off.],","doi":"10.3133/cir561","usgsCitation":"VanSickle, G.H., and Lakin, H.W., 1968, An atomic-absorption method for the determination of gold in large samples of geologic materials: U.S. Geological Survey Circular 561, iii, 4 p. ;27 cm., https://doi.org/10.3133/cir561.","productDescription":"iii, 4 p. ;27 cm.","costCenters":[],"links":[{"id":139260,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0561/report-thumb.jpg"},{"id":30337,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0561/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db684c78","contributors":{"authors":[{"text":"VanSickle, Gordon H.","contributorId":76280,"corporation":false,"usgs":true,"family":"VanSickle","given":"Gordon","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":146674,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lakin, Hubert William","contributorId":54578,"corporation":false,"usgs":true,"family":"Lakin","given":"Hubert","email":"","middleInitial":"William","affiliations":[],"preferred":false,"id":146673,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":13737,"text":"ofr69104 - 1968 - Infrared survey of the Pisgah Crater area, San Bernardino County, California - a geologic interpretation","interactions":[],"lastModifiedDate":"2012-02-02T00:06:51","indexId":"ofr69104","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"69-104","title":"Infrared survey of the Pisgah Crater area, San Bernardino County, California - a geologic interpretation","docAbstract":"The infrared survey of the Pisgah Crater Area, San Bernardino County, California was primarily undertaken to establish parameters by which rock types, structures, and textures peculiar to this locale could be recognized or differentiated. A secondary purpose was to provide an adequate evaluation and calibration of airborne and ground-based instruments used in the survey.\r\n \r\nPisgah Crater and its vicinity was chosen as one of the fundamental test sites for the NASA remote sensing program because of its relatively fresh basaltic flows and pyroclastics. Its typical exposure of basalt also made it a possible lunar analogue. A fundamental test site for the purpose of the program is defined as a readily accessible area for which the topography, geology, hydrology, soils, vegetation and other features are relatively well known. All remote sensor instrument teams, i.e. infrared, radar, microwave, and photography, were obligated to use the fundamental test sites for instrument evaluation and to establish terrain identification procedures. \r\n\r\nPisgah Crater, nearby Sunshine Cone, and their associated lava flows are in the southern Mojave Desert about 40 miles east-southeast of Barstow, California. (See fig. 1.) U. S. Highway 66 skirts .the northern part of the area and provides access via asphalt-paved and dirt roads to the Crater and to the perimeters of the flows. Pisgah Crater, which is a pumiceous cone, is owned and occasionally quarried by the Atchison, Topeka and Santa Fe Railroad. The remaining part of the area to the south is within the boundary of the Marine Corps Base, Twentynine Palms, California and is currently being used as a gunnery, and bombing range. The proximate area to east, west, and north of Pisgah Crater is public domain. \r\n\r\nOriginally, an area totaling 10 square miles was outlined for detailed study. (See plate 1.) This included an 8 mile long strip extending south- east from and including Pisgah Crater to Lavic Dry Lake, and a 2 mile strip aligned to include a portion of the Sunshine lava flow and the dry lake. Additional aerial infrared imagery of the Sunshine and Pisgah flows along the Pisgah fault proved so interesting and informative that this area is included in the discussion. \r\n\r\nInfrared surveys were flown February ii through 13, 1965 and August 5 and 9, 1966. The initial survey was flown by the NASA personnel aboard the NASA 926 Convair 240 aircraft. Because of technical problems with the infrared scanners (4.5-5.5 and 8-14 micron bands) and with certain ground instruments, most of the imagery and ground temperature data obtained during the initial survey period was of little value. However, excellent infrared imagery in the 8-14 micron (?) region of the spectrum was acquired by the Geological Survey during the August 1966 survey. The scanner was mounted in a Beech D-18 aircraft provided by the Survey's Water Resources Division. Likewise, more reliable ground data was obtained at this time owing to improved instrumentation and technique. Ground data were taken by Geological Survey personnel including W. A. Fischer, J. D. Friedman, W. R. Hemphill, D. L. Daniels, G. R. Boynton, Po W. Philbin and the author. C. R. Fross operated the infrared scanner during the August, 1966 survey and R. M. Turner was-responsible for photo processing of the infrared imagery. Their assistance is gratefully acknowledged.","language":"ENGLISH","publisher":"U.S. Geological Survey],","doi":"10.3133/ofr69104","usgsCitation":"Gawarecki, S.J., 1968, Infrared survey of the Pisgah Crater area, San Bernardino County, California - a geologic interpretation: U.S. Geological Survey Open-File Report 69-104, 49 p. :maps ;29 cm., https://doi.org/10.3133/ofr69104.","productDescription":"49 p. :maps ;29 cm.","costCenters":[],"links":[{"id":147296,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0104/report-thumb.jpg"},{"id":42312,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0104/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":42313,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1969/0104/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":42314,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0104/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66daf1","contributors":{"authors":[{"text":"Gawarecki, Stephen J.","contributorId":52189,"corporation":false,"usgs":true,"family":"Gawarecki","given":"Stephen","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":168313,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":32657,"text":"pp516E - 1968 - A geophysical study in Grand Teton National Park and vicinity, Teton County, Wyoming","interactions":[],"lastModifiedDate":"2025-05-21T17:47:12.819568","indexId":"pp516E","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"516","chapter":"E","title":"A geophysical study in Grand Teton National Park and vicinity, Teton County, Wyoming","docAbstract":"<p>An integrated geophysical study - comprising gravity, seismic refraction, and aeromagnetic surveys - was made of a 4,600-km<sup>2</sup> area in Grand Teton National Park and vicinity, Wyoming, for the purpose of obtaining a better understanding of the structural relationships in the region. The Teton range is largely comprised of Precambrian crystalline rocks and layered metasedimentary gneiss, but it also includes granitic gneiss, hornblende-plagioclase gneiss, granodiorite, and pegmatite and diabase dikes. Elsewhere, the sedimentary section is thick. The presence of each system except Silurian provides a chronological history of most structures. Uplift of the Teton-Gros Ventre area began in the Late Cretaceous; most of the uplift occurred after middle Eocene time. Additional uplift of the Teton Range and downfaulting of Jackson Hole began in the late Pliocene and continues to the present. </p><p>Bouguer anomalies range from -185 mgal over Precambrian rocks of the Teton Range to -240 mgal over low-density Tertiary and Cretaceous sedimentary rocks of Jackson Hole. The Teton fault (at the west edge of Jackson Hole), as shown by steep gravity gradients and seismic-refraction data, trends north-northeast away from the front of the Teton Range in the area of Jackson Lake. The Teton fault either is shallowly inclined in the Jenny Lake area, or it consists of a series of fault steps in the fault zone; it is approximately vertical in the Arizona Creek area. </p><p>Seismic-refraction data can be fitted well by a three-layer gravity model with velocities of 2.45 km per sec for the Tertiary and Cretaceous rocks above the Cloverly Formation, 3.9 km per sec for the lower Mesozoic rocks, and 6.1 km per sec for the Paleozoic (limestone and dolomite) and Precambrian rocks. Gravity models computed along two seismic profiles are in good agreement (σ=± 2 mgal) if density contrasts with the assumed 2.67 g per cm<sup>3</sup> Paleozoic and Precambrian rocks are assumed to be -0.35 and -0.10 g per cm<sup>3</sup> for the 2.45 and 3.9 km per sec velocity layers, respectively. The Teton Range has a maximum vertical uplift of about 7 km, as inferred from the maximum depth to basement of about 5 km. </p><p>Aeromagnetic data show a 400γ positive anomaly in the Gros Ventre Range, which trends out of the surveyed area at the east edge. Exposed Precambrian rocks contain concentrations of magnetite and hematite. A prominent anomaly of about 100γ is associated with the Gros Ventre Range, and 100γ anomalies are associated with the layered gneiss of the Teton Range. On this basis the unmapped Precambrian rocks of the Gross Ventre Range are interpreted as layered gneiss. The sources of the magnetic anomalies, as indicated by depth determination, are at the surface of the Precambrian rocks. A model fitted to a profile across the Gros Ventre Range gives a depth to the Precambrian surface and a susceptibility of 0.0004 emu (electromagnetic units) for the source, which is consistent with modal analyses of the layered gneisses. A residual magnetic map shows that the granitic rocks and layered gneiss probably continue beneath the floor of Jackson Hole east of the Teton fault. The location of aeromagnetic anomalies is consistent with the interpretation that the Teton fault diverges from the front of the Teton Range.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Geophysical field investigations, 1964-67 (Professional Paper 516)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp516E","usgsCitation":"Behrendt, J.C., Tibbetts, B.L., Bonini, W.E., Lavin, P.M., Love, J.D., and Reed, J., 1968, A geophysical study in Grand Teton National Park and vicinity, Teton County, Wyoming: U.S. Geological Survey Professional Paper 516, Report: v, 23 p.; 3 Plates: 14.00 × 20.00 inches or smaller, https://doi.org/10.3133/pp516E.","productDescription":"Report: v, 23 p.; 3 Plates: 14.00 × 20.00 inches or smaller","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":125352,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0516e/report-thumb.jpg"},{"id":60549,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0516e/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":394917,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_4545.htm"},{"id":60546,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0516e/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60547,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0516e/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60548,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0516e/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Wyoming","county":"Teton County","otherGeospatial":"Grand Teton National Park and vicinity","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.0223388671875,\n              43.09697190802465\n            ],\n            [\n              -110.2313232421875,\n              43.09697190802465\n            ],\n            [\n              -110.2313232421875,\n              44.15068115978094\n            ],\n            [\n              -111.0223388671875,\n              44.15068115978094\n            ],\n            [\n              -111.0223388671875,\n              43.09697190802465\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4957e4b0b290850ef129","contributors":{"authors":[{"text":"Behrendt, John Charles jbehrendt@usgs.gov","contributorId":74747,"corporation":false,"usgs":true,"family":"Behrendt","given":"John","email":"jbehrendt@usgs.gov","middleInitial":"Charles","affiliations":[],"preferred":false,"id":208873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tibbetts, Benton L.","contributorId":105169,"corporation":false,"usgs":true,"family":"Tibbetts","given":"Benton","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":208875,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bonini, William E.","contributorId":87417,"corporation":false,"usgs":true,"family":"Bonini","given":"William","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":208874,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lavin, Peter M.","contributorId":42087,"corporation":false,"usgs":true,"family":"Lavin","given":"Peter","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":208871,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Love, J. D.","contributorId":64620,"corporation":false,"usgs":true,"family":"Love","given":"J.","middleInitial":"D.","affiliations":[],"preferred":false,"id":208872,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reed, John C. jreed@usgs.gov","contributorId":1259,"corporation":false,"usgs":true,"family":"Reed","given":"John C.","email":"jreed@usgs.gov","affiliations":[],"preferred":true,"id":208870,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":2778,"text":"wsp1608I - 1968 - Fresh and saline ground-water zones in the Punjab region, West Pakistan","interactions":[],"lastModifiedDate":"2012-02-02T00:05:29","indexId":"wsp1608I","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1608","chapter":"I","title":"Fresh and saline ground-water zones in the Punjab region, West Pakistan","docAbstract":"An extensive program of test drilling and water sampling, undertaken by the Water and Soils Investigation Division (WASID) of the West Pakistan Water and Power Development Authority (WAPDA) to evaluate hydrologic problems related to waterlogging and soil salinity, has furnished data for the delineation of fresh and saline ground-water zones in the Punjab region of West Pakistan. Fresh ground water containing generally less than 500 ppm (parts per million) of total dissolved solids is found in wide belts paralleling the major rivers and in other areas of ground-water recharge. The fresh groundwater zone of upper (northeastern) Rechna Doab, where annual precipitation in places exceeds 30 inches, is the most extensive of the Punjab region and attains a depth of 1,700 feet or more below land surface near Gujranwala. Fresh ground water adjacent to the Indus River extends locally to depths of about \r\nl,500 feet. \r\n\r\nSaline ground water occurs downgradient from sources of recharge, particularly in the central parts of the interfluvial areas. Also, available data indicate a gradual increase in mineralization with depth and distance from sources of fresh-water recharge. Thus, even extensive fresh-water zones appear to be underlain, at variable depths, by saline ground water in most of the Punjab region. The saline ground waters of the Punjab region do not constitute, however, a distinct salt-water body that can be defined in terms of stratigraphic position, sea-level datum, particular lithology, or by chemical character. \r\n\r\nThe ground waters of the Punjab region are characterized by a gradation from calcium magnesium bicarbonate types, near the sources of recharge, to waters containing a dominant proportion of sodium. Water containing from 500 to 1,000 ppm is commonly of the sodium bicarbonate type, or it may be of the mixed type, having about equal proportions of the common anions (bicarbonate, chloride, and sulfate). With increasing mineralization from about 1,000 to 3,000 ppm, ,the relative proportion of chloride and sulfate increases, and these waters are generally of the sodium chloride or sodium sulfate type. The highly mineralized waters of the Punjab region are generally of the sodium chloride type, whereas in Dera Ismail (D.I.) Khan District sodium sulfate waters predominate. The ground waters from more than 900 sampling sites have been classified into eight types, according to dominant cations and anions. These types have been further subdivided into groups containing different amounts of total dissolved solids. \r\n\r\nThe pattern of distribution of saline ground-water zones in the Punjab region and the observed gradual increase in mineral content, downgradient from sources of fresh-water recharge, can be explained best by the processes of evaporation from the water table and solution of minerals within the alluvial aquifer.","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/wsp1608I","usgsCitation":"Swarzenski, W., 1968, Fresh and saline ground-water zones in the Punjab region, West Pakistan: U.S. Geological Survey Water Supply Paper 1608, iii, 24 p. :ill. ;24 cm., https://doi.org/10.3133/wsp1608I.","productDescription":"iii, 24 p. :ill. ;24 cm.","costCenters":[],"links":[{"id":138679,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/1608i/report-thumb.jpg"},{"id":29226,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1608i/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":29227,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1608i/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":29228,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1608i/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":29229,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/1608i/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a83a7","contributors":{"authors":[{"text":"Swarzenski, W.V.","contributorId":80243,"corporation":false,"usgs":true,"family":"Swarzenski","given":"W.V.","email":"","affiliations":[],"preferred":false,"id":145772,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":3952,"text":"cir592 - 1968 - Interpreting pan-concentrate analysis of stream sediments in geochemical exploration for gold","interactions":[],"lastModifiedDate":"2017-06-25T13:10:19","indexId":"cir592","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"592","title":"Interpreting pan-concentrate analysis of stream sediments in geochemical exploration for gold","docAbstract":"A study of methods of collecting and processing samples to determine whether or not gold is present in areas of moderate size was undertaken in the northwestern part of the San Juan Mountains, Colo. As part of this study, 57 samples of pan concentrates were taken from streams draining three types of areas: (1)'barren' areas, where gold mineralization might be geologically possible but no deposits are known, (2) slightly mineralized areas that contain only a few known veins and prospects and small mines, and (3) well-mineralized areas that contain numerous veins and some very productive mines. The concentrate samples were analyzed by the fire-assay-atomic-absorption method. Replicate analyses of large samples gave results consistent enough to permit placing considerable confidence in the results obtained for smaller samples on which only one analysis was made. For general field practice, it is necessary to pan only enough sand and gravel to yield about 15 grams of concentrate. The analytical r6sults are also quantitatively compatible with known geologic relations and indicate that a few samples from a stream are adequate to distinguish between 'barren' and mineralized areas and to determine the relative amount of gold in mineralized areas. In other areas of similar gold deposits, data of this type should help decide whether more intensive search for gold deposits is justified.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/cir592","usgsCitation":"Fischer, R.P., and Fisher, F.S., 1968, Interpreting pan-concentrate analysis of stream sediments in geochemical exploration for gold: U.S. Geological Survey Circular 592, iii, 9 p. :illus., map. ;26 cm., https://doi.org/10.3133/cir592.","productDescription":"iii, 9 p. :illus., map. ;26 cm.","costCenters":[],"links":[{"id":31039,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1968/0592/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124627,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1968/0592/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d9e4b07f02db5dfc29","contributors":{"authors":[{"text":"Fischer, Richard Philip","contributorId":94283,"corporation":false,"usgs":true,"family":"Fischer","given":"Richard","email":"","middleInitial":"Philip","affiliations":[],"preferred":false,"id":147887,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, Frederick S.","contributorId":17979,"corporation":false,"usgs":true,"family":"Fisher","given":"Frederick","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":147886,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1006,"text":"wsp1859C - 1968 - Analysis of water quality of the Mahoning River in Ohio","interactions":[],"lastModifiedDate":"2012-02-02T00:05:16","indexId":"wsp1859C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1859","chapter":"C","title":"Analysis of water quality of the Mahoning River in Ohio","docAbstract":"The Mahoning River drains the densely populated and industrialized Warren-Youngstown area in northeastern Ohio. Significant chemical constituents and physical properties generally regarded as important in establishing water-quality standards for the Mahoning River are evaluated on the basis of hydrologic conditions and water use. Most of the interpretations and the appraisal of water-quality conditions are based on data collected from January 1963 to December 1965. Generally, streamflow during this period was lower than during a selected long-term reference period ; however, extremely low flows that occurred in the reference period did not occur in the 3-year study period. \r\n\r\nWater temperatures of the Mahoning River at Pricetown and Leavittsburg were not affected by thermal loading. Water temperatures at those stations ranged from the freezing point to 78?F during the 1963-65 period. Downstream from Leavittsburg, the use of large quantities of water for industrial cooling caused critical thermal loading during periods of low streamflow. Maximum water temperatures were 108?F and 104?F at Struthers and Lowellville, respectively. Water temperatures of the Mahoning River were lower during high water discharges and increased with higher steel-production indices. Flow augmentation and modifications in industrial processes have improved the water-temperature conditions in recent years. \r\n\r\nA combination of oxygen-consuming materials and warmed water from industrial and municipal wastes discharged into the lower reaches of the Mahoning River frequently depleted the dissolved-oxygen content. At Lowellville, the river water had a dissolved-oxygen content of 5 ppm (parts per million) or less for 67 percent of the time and 3 ppm or less for 16 percent of the time during the study period. The percentage of saturation of dissolved oxygen followed a similar trend. Both the dissolved-oxygen concentration and the percentage of saturation were noticeably lower downstream from Leavittsburg during the warm months when water temperatures were high and streamflow was low. The dissolved-oxygen content in the Mahoning River at Leavittsburg and Pricetown was almost always at acceptable levels. \r\n\r\nThe calculated dissolved-solids concentration of the Mahoning River ranged from 150 to 450 ppm at Leavittsburg and from 200 ppm to 650 ppm at Lowellville. Industrial use of the water caused an increase in the dissolved-solids concentration at Lowellville. During one steel-mill shutdown the average dissolved-solids concentration decreased from about 360 to about 280 ppm. \r\n\r\nChloride concentrations in the Mahoning River ranged from 42 ppm at Pricetown to 108 ppm at Struthers. The chloride load at 50-percent flow duration was 9 and 69 tons per day at Pricetown and Lowellville, respectively. The chloride content of the Mahoning River was well within acceptable levels. \r\n\r\nSulfate from wastes disposal and acid mine drainage made up the largest quantity of dissolved-solids load in the Mahoning River. The sulfate load at 50-percent flow duration increased from 38 tons per day at Pricetown to 300 tons per day at Lowellville. At Pricetown the sulfate load ranged from about 2 to 588 tons per day, while at Lowellville, downstream from the industrialized area, the range was from 106 to 2,420 tons per day. Comparison of sulfate loads during periods of steel production with periods of steel-mill shutdown indicated that during low flow about half the sulfate load at Lowellville was derived from steel-mill wastes when the production index was 100. \r\n\r\nThe alkalinity load of the Mahoning River at 50-percent flow duration increased from Pricetown (23 tons per day) to Lowellville (41 tons per day). During steel production the alkalinity of the water showed a marked decrease from Leavittsburg downstream to Lowellville. However, during steel-mill shutdowns the chemical composition of the river at Youngstown and Lowellville was similar to that at Leavittsburg. Acid mine drainag","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/wsp1859C","usgsCitation":"Bednar, G.A., Collier, C.R., and Cross, W.P., 1968, Analysis of water quality of the Mahoning River in Ohio: U.S. Geological Survey Water Supply Paper 1859, iv, 32 p. :ill. (some col.) ;24 cm., https://doi.org/10.3133/wsp1859C.","productDescription":"iv, 32 p. :ill. (some col.) ;24 cm.","costCenters":[],"links":[{"id":137950,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/1859c/report-thumb.jpg"},{"id":25585,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1859c/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":25586,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/1859c/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67ec8d","contributors":{"authors":[{"text":"Bednar, Gene A.","contributorId":81881,"corporation":false,"usgs":true,"family":"Bednar","given":"Gene","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":143010,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collier, Charles R.","contributorId":57821,"corporation":false,"usgs":true,"family":"Collier","given":"Charles","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":143009,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cross, William Perry","contributorId":21137,"corporation":false,"usgs":true,"family":"Cross","given":"William","email":"","middleInitial":"Perry","affiliations":[],"preferred":false,"id":143008,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
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